Discovery of the Middle Triassic Ammonoid<i>Balatonites</i>in the Quy Lang Formation, Thanh Hoa Province, Central Vietnam
書誌事項
- 公開日
- 2010-12
- DOI
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- 10.2517/1342-8144-14.4.244
- 公開者
- The Paleontological Society of Japan
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説明
The discovery of Balatonites sp. in the lower part of the Quy Lang Formation in the Lang Nuoc area, Thanh Hoa Province, Central Vietnam establishes that this portion of the formation is of late Middle Anisian age. This ammonoid's cooccurrence with Costatoria goldfussi mansuyi and Trigonodus tonkinensis suggests that this widely distributed bivalve assemblage in Asian shallow marine facies is at least partly of late Middle Anisian age, and its discovery may provide an important key for the establishment of a precise biostratigraphic framework for the Middle Triassic of Asia.
収録刊行物
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- Paleontological Research
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Paleontological Research 14 (4), 244-249, 2010-12
The Paleontological Society of Japan
